[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 17.938907] audit: type=1400 audit(1517758088.885:6): avc: denied { map } for pid=4151 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.251576] audit: type=1400 audit(1517758095.198:7): avc: denied { map } for pid=4165 comm="syzkaller259431" path="/root/syzkaller259431444" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 24.266673] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 24.307727] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program [ 24.338697] IPVS: ftp: loaded support on port[0] = 21 [ 24.369392] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.400372] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.474060] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.545216] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.643581] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 24.934134] kasan: CONFIG_KASAN_INLINE enabled [ 24.938915] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.946564] general protection fault: 0000 [#1] SMP KASAN [ 24.952096] Dumping ftrace buffer: [ 24.955626] (ftrace buffer empty) [ 24.959323] Modules linked in: [ 24.962511] CPU: 1 PID: 4359 Comm: syzkaller259431 Not tainted 4.15.0+ #296 [ 24.969603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.978956] RIP: 0010:pppol2tp_connect+0x10a3/0x1dd0 [ 24.984044] RSP: 0018:ffff8801cb78faf0 EFLAGS: 00010202 [ 24.989402] RAX: dffffc0000000000 RBX: ffff8801b0bea540 RCX: ffffffff851a5940 [ 24.996663] RDX: 0000000000000045 RSI: 00000000dbdb95ae RDI: 0000000000000228 [ 25.003924] RBP: ffff8801cb78fd70 R08: 1ffff100396f1e9f R09: 0000000000000002 [ 25.011190] R10: ffff8801cb78f9c0 R11: 0000000000000000 R12: ffff8801b0541680 [ 25.018454] R13: ffff8801cb78fd48 R14: 0000000000000000 R15: ffff8801cb78fc28 [ 25.025720] FS: 0000000000e89880(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000 [ 25.033948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.039824] CR2: 00000000205fafd2 CR3: 00000001b0723003 CR4: 00000000001606e0 [ 25.047085] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.054344] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.061607] Call Trace: [ 25.064207] ? pppol2tp_recv_payload_hook+0x1b0/0x1b0 [ 25.069401] ? selinux_netlbl_socket_connect+0x76/0x1b0 [ 25.074771] ? selinux_socket_connect+0x311/0x730 [ 25.079616] ? lock_downgrade+0x980/0x980 [ 25.083758] ? lock_downgrade+0x980/0x980 [ 25.087903] ? selinux_socket_setsockopt+0x80/0x80 [ 25.092825] ? lock_release+0xa40/0xa40 [ 25.096802] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 25.102689] ? __check_object_size+0x8b/0x530 [ 25.107187] ? handle_mm_fault+0x476/0x930 [ 25.111420] ? __might_sleep+0x95/0x190 [ 25.115400] ? security_socket_connect+0x89/0xb0 [ 25.120157] SYSC_connect+0x213/0x4a0 [ 25.123967] ? SYSC_bind+0x410/0x410 [ 25.127681] ? do_page_fault+0xee/0x720 [ 25.131653] ? __do_page_fault+0xc90/0xc90 [ 25.135888] ? sock_map_fd+0x53/0x90 [ 25.139599] ? SyS_socket+0x12d/0x1d0 [ 25.143391] ? entry_SYSCALL_64_fastpath+0x5/0xa0 [ 25.148230] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.153247] SyS_connect+0x24/0x30 [ 25.156790] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 25.161537] RIP: 0033:0x440e49 [ 25.164717] RSP: 002b:00007ffddb958d58 EFLAGS: 00000206 ORIG_RAX: 000000000000002a [ 25.172416] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440e49 [ 25.179678] RDX: 000000000000002e RSI: 00000000205fafd2 RDI: 0000000000000004 [ 25.186937] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 25.194196] R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000614e [ 25.201458] R13: 00000000006ce720 R14: 00000000004a27c2 R15: 00000000006cf050 [ 25.208728] Code: fe ff ff e8 70 4c 56 fc 4c 89 fa 49 8d be 28 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 c6 04 02 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 09 00 00 4c 89 fa 48 b8 00 00 00 00 00 fc [ 25.227911] RIP: pppol2tp_connect+0x10a3/0x1dd0 RSP: ffff8801cb78faf0 [ 25.234523] ---[ end trace 61e9d6fcb4117bc0 ]--- [ 25.239283] Kernel panic - not syncing: Fatal exception [ 25.245059] Dumping ftrace buffer: [ 25.248587] (ftrace buffer empty) [ 25.252276] Kernel Offset: disabled [ 25.255881] Rebooting in 86400 seconds..